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599 Commits

Author SHA1 Message Date
Jim Grosbach
b080b9045e Remove trailing whitespace. 
llvm-svn: 125385
 2011-02-11 18:45:44 +00:00
Jim Grosbach
872c008cab Remove trailing whitespace. 
llvm-svn: 125327
 2011-02-11 01:21:00 +00:00
Bob Wilson
20927bf2f0 Remove trailing whitespace 
llvm-svn: 124830
 2011-02-03 23:17:44 +00:00
Rafael Espindola
547873da60 Add support for the --noexecstack option. 
llvm-svn: 124077
 2011-01-23 17:55:27 +00:00
Rafael Espindola
492ad6ca06 Remove more duplicated code. 
llvm-svn: 124056
 2011-01-23 04:43:11 +00:00
Rafael Espindola
59c1246cee Remove duplicated code. 
llvm-svn: 124054
 2011-01-23 04:28:49 +00:00
Anton Korobeynikov
1f9df99db1 Add a possibility to switch between CFI directives- and table-based frame description emission. Currently all the backends use table-based stuff. 
llvm-svn: 123476
 2011-01-14 21:58:08 +00:00
Evan Cheng
cc474b4864 Model :upper16: and :lower16: as ARM specific MCTargetExpr. This is a step 
in the right direction. It eliminated some hacks and will unblock codegen
work. But it's far from being done. It doesn't reject illegal expressions,
e.g. (FOO - :lower16:BAR). It also doesn't work in Thumb2 mode at all.

llvm-svn: 123369
 2011-01-13 07:58:56 +00:00
Daniel Dunbar
9ee74282a6 MC/Mach-O/Thumb: Set the thumb bit in the symbol table. 
llvm-svn: 122630
 2010-12-29 14:14:06 +00:00
Rafael Espindola
d51ed1fc6a Implement cfi_def_cfa. Also don't convert to dwarf reg numbers twice. Looks 
like 6 is a fixed point of that and so the previous tests were OK :-)

llvm-svn: 122614
 2010-12-29 01:42:56 +00:00
Rafael Espindola
3fdd045643 Implement .cfi_remember_state and .cfi_restore_state. 
llvm-svn: 122602
 2010-12-28 18:36:23 +00:00
Rafael Espindola
c97d642bf7 Relax address updates in the eh_frame section. 
llvm-svn: 122591
 2010-12-28 05:39:27 +00:00
Rafael Espindola
0552cb0638 Start adding basic support for emitting the call frame instructions. 
llvm-svn: 122590
 2010-12-28 04:15:37 +00:00
Rafael Espindola
12c30aed07 Add support for .cfi_lsda. 
llvm-svn: 122584
 2010-12-27 15:56:22 +00:00
Rafael Espindola
e7e67fce10 Add support for the same encodings of the personality function that gnu as 
supports.

llvm-svn: 122577
 2010-12-27 00:36:05 +00:00
Rafael Espindola
99f1527316 Add basic support for .cfi_personality. 
llvm-svn: 122566
 2010-12-26 20:20:31 +00:00
Rafael Espindola
b2e09adc62 Merge IsFixupFullyResolved and IsSymbolRefDifferenceFullyResolved. We now 
have a single point where targets test if a relocation is needed.

llvm-svn: 122549
 2010-12-24 21:22:02 +00:00
Rafael Espindola
81ac7c5fad Rename NeedsSetToChangeDiffSize to HasAggressiveSymbolFolding which is a much 
better name and matches what is used in the MachO writer.

llvm-svn: 122443
 2010-12-22 21:51:29 +00:00
Rafael Espindola
c05eac148d Use references and simplify. 
llvm-svn: 122405
 2010-12-22 16:11:57 +00:00
Rafael Espindola
3d9afa3c44 Don't relax org or align. They change size as the relaxation happens, but they 
are not actually relaxed. For example, a section with only alignments will never
needs relaxation.

llvm-svn: 122356
 2010-12-21 20:35:18 +00:00
Daniel Dunbar
1c98bbd915 MC/Mach-O: Shuffle enums a bit to make it harder to inadvertently use the wrong 
type.

llvm-svn: 122334
 2010-12-21 15:26:45 +00:00
Rafael Espindola
e0e966982a Layout one section until no relaxations are done and then move to the next 
section.

This helps because in practice sections form a dag with debug sections pointing
to text sections. Finishing up the text sections first makes the debug section
relaxation trivial.

llvm-svn: 122314
 2010-12-21 04:22:09 +00:00
Roman Divacky
ed5bb14415 Add support for lexing single quotes like 'c'. 
This fixed 8615.

llvm-svn: 122150
 2010-12-18 08:56:37 +00:00
Rafael Espindola
df98fb74f6 Merge isAbsolute into IsSymbolRefDifferenceFullyResolved. 
llvm-svn: 122148
 2010-12-18 06:27:54 +00:00
Rafael Espindola
7f9be9e112 Remove the MCObjectFormat class. 
llvm-svn: 122147
 2010-12-18 05:37:28 +00:00
Rafael Espindola
f3aeaaa3f4 Revert 122011, 122012, 122013, 122023 adding back an important optimization. 
I added a note, but suggestions on how to add a test are really welcome.

llvm-svn: 122138
 2010-12-18 03:57:21 +00:00
Rafael Espindola
9a4bfd7755 Move some data to the TargetWriter. 
llvm-svn: 122134
 2010-12-18 03:27:34 +00:00
Rafael Espindola
b9ca29bc1c Stub out explicit MCELFObjectTargetWriter interface. 
llvm-svn: 122067
 2010-12-17 17:45:22 +00:00
Rafael Espindola
38e6fdfd1d Move createELFObjectWriter to its own header. 
llvm-svn: 122064
 2010-12-17 16:59:53 +00:00
Daniel Dunbar
6979fc1057 MC/Mach-O: On second thought, use a custom hook for enabling aggressive 
IsSymbolRefDifferenceFullyResolved, it turns out this does change behavior on
enough cases for x86-32 that I would rather wait a bit on it.
 - In practice, we will want to change this eventually because it only means we
   generate less relocations (it also eliminates the need for the horrible
   '.set' hack that Darwin requires in some places).

llvm-svn: 122042
 2010-12-17 05:50:29 +00:00
Daniel Dunbar
2caf23b5a9 MC/ObjectWriter: Add a new IsSymbolRefDifferenceFullyResolved target format specific hook. 
- Currently just has stub implementations for Mach-O, ELF, and COFF.

llvm-svn: 122037
 2010-12-17 04:54:54 +00:00
Daniel Dunbar
f77af712b7 MC/Assembler: Strip out object writer arguments, now that it is always available 
-- and remove FIXME asking for the same!

llvm-svn: 122032
 2010-12-17 02:45:59 +00:00
Daniel Dunbar
54b3f3e5db MC/Assembler: Make the MCObjectWriter available through the lifetime of the 
assembler.

llvm-svn: 122031
 2010-12-17 02:45:41 +00:00
Daniel Dunbar
0d8fdf42c7 MC/Expr: Simplify. 
llvm-svn: 122023
 2010-12-17 02:05:45 +00:00
Daniel Dunbar
565c90b316 MC: Remove another dead MCAssembler argument, and update clients. 
llvm-svn: 122013
 2010-12-17 01:07:35 +00:00
Daniel Dunbar
9f83b4d605 MC: Remove dead MCAssembler argument -- Rafael, can you check the FIXME I added 
here?

llvm-svn: 122012
 2010-12-17 01:07:31 +00:00
Daniel Dunbar
8b0153bed2 Fix 80-col viola. 
llvm-svn: 122010
 2010-12-17 01:07:25 +00:00
Daniel Dunbar
2277f06687 MC/Mach-O: Lift some MachObjectWriter arguments into the target specific 
interface.

llvm-svn: 121981
 2010-12-16 17:21:02 +00:00
Daniel Dunbar
5fee4f6862 MC/Mach-O: Stub out explicit MCMachObjectTargetWriter interface. 
llvm-svn: 121973
 2010-12-16 16:09:19 +00:00
Daniel Dunbar
636e690f58 MC/Mach-O: Move createMachObjectWriter into MCMachObjectWriter.h. 
llvm-svn: 121971
 2010-12-16 16:08:33 +00:00
Daniel Dunbar
fc14f1e5f6 MC: Move target specific fixup info descriptors to TargetAsmBackend instead of 
the MCCodeEmitter, which seems like a better organization.
 - Also, cleaned up some magic constants while in the area.

llvm-svn: 121953
 2010-12-16 03:20:06 +00:00
Daniel Dunbar
8ab9be2005 MC: Make TargetAsmBackend available to the AsmStreamer. 
- Treaty talks on the non-proliferation of MC objects broke down.

llvm-svn: 121949
 2010-12-16 03:05:59 +00:00
Daniel Dunbar
b5ea5a74f9 MC: Split MCFixupKindInfo out into its own header. 
llvm-svn: 121948
 2010-12-16 03:05:53 +00:00
Daniel Dunbar
fc4b79c9e8 MC: Remove a FIXME I no longer agree with. 
llvm-svn: 121947
 2010-12-16 03:05:46 +00:00
Owen Anderson
202d654195 Implement cleanups suggested by Daniel. 
llvm-svn: 121875
 2010-12-15 18:48:27 +00:00
Rafael Espindola
94d026d157 Relax alignment fragments. 
With this we don't need the EffectiveSize field anymore. Without that field
LayoutFragment only updates offsets and we don't need to invalidate the
current fragment when it is relaxed (only the ones following it).

This is also a very small improvement in the accuracy of the layout info as
we now use the after relaxation size immediately.

llvm-svn: 121857
 2010-12-15 08:45:53 +00:00
Jim Grosbach
25d3e79b23 ARM Fixups relative to thumb functions need to have the low bit of the value 
set for interworking to work properly. rdar://8755956

llvm-svn: 121778
 2010-12-14 18:46:57 +00:00
Rafael Espindola
0e665e502d Fixed version of 121434 with no new memory leaks. 
llvm-svn: 121471
 2010-12-10 07:39:47 +00:00
Rafael Espindola
011e168728 Revert my previous patch to make the valgrind bots happy. 
llvm-svn: 121461
 2010-12-10 04:01:09 +00:00
Rafael Espindola
03ad1e8f1f Initial support for the cfi directives. This is just enough to get 
f:
        .cfi_startproc
        nop
        .cfi_endproc

assembled (on ELF).

llvm-svn: 121434
 2010-12-09 23:48:29 +00:00